Remove "only"

Author: stevepiercy

docs/install/containers/examples/haproxy-plone-zeo.md

@@ -8,7 +8,7 @@ html_meta:
 
 # HAProxy, Backend, ZEO container example
 
-This example is a very simple setup with only one or more backend instances accessing a ZEO server and data being persisted in a Docker volume.
+This example is a very simple setup with one or more backend instances accessing a ZEO server and data being persisted in a Docker volume.
 
 {term}`HAProxy` is used for load balancing in this example.
 We will use the image [`plone/plone-haproxy`](https://github.com/plone/plone-haproxy).

docs/install/containers/examples/nginx-volto-plone-postgresql.md

@@ -8,7 +8,7 @@ html_meta:
 
 # Nginx, Frontend, Backend, PostgreSQL container example
 
-This example is a very simple setup with only one or more backend instances accessing a Postgres server and data being persisted in a Docker volume.
+This example is a very simple setup with one or more backend instances accessing a Postgres server and data being persisted in a Docker volume.
 
 Nginx in this example is used as a [reverse proxy](https://docs.nginx.com/nginx/admin-guide/web-server/reverse-proxy/").
 

docs/install/containers/examples/nginx-volto-plone-zeo.md

@@ -8,7 +8,7 @@ html_meta:
 
 # Nginx, Frontend, Backend, ZEO container example
 
-This example is a very simple setup with only one or more backend instances accessing a ZEO server and data being persisted in a Docker volume.
+This example is a very simple setup with one or more backend instances accessing a ZEO server and data being persisted in a Docker volume.
 
 Nginx in this example is used as a [reverse proxy](https://docs.nginx.com/nginx/admin-guide/web-server/reverse-proxy/").
 

docs/install/containers/examples/nginx-volto-plone.md

@@ -8,7 +8,7 @@ html_meta:
 
 # Nginx, Frontend, Backend container example
 
-This example is a very simple setup with only one backend and data being persisted in a Docker volume.
+This example is a very simple setup with one backend and data being persisted in a Docker volume.
 
 Nginx in this example is used as a [reverse proxy](https://docs.nginx.com/nginx/admin-guide/web-server/reverse-proxy/").